ANSWERS

1) True  2) False - CNC stands for Computer Numerical Control  3) True  4) True  5) False - 1 liter of fresh water = 1 kg = 2.2 lb  6) a) Whetstone  7) True  8) Argon  9) Geiger counter (or Geiger-Müller counter)  10) A fear of Flying or of being on an Airplane